U.S. patent application number 12/820099 was filed with the patent office on 2010-10-07 for wearable high resolution audio visual interface.
Invention is credited to James Jannard.
Application Number | 20100253904 12/820099 |
Document ID | / |
Family ID | 39536972 |
Filed Date | 2010-10-07 |
United States Patent
Application |
20100253904 |
Kind Code |
A1 |
Jannard; James |
October 7, 2010 |
WEARABLE HIGH RESOLUTION AUDIO VISUAL INTERFACE
Abstract
An adjustable visual optical element is provided, which may be
supported, for example, by an eyeglass. The optical element is
preferably adjustable in each of the X, Y, and Z axes to allow the
wearer to optimize projection of the optical element. A view axis
of the display is preferably also angularly adjustable with respect
to a wearer's straight ahead normal line of sight. Source
electronics may be carried onboard the eyeglasses, or may be
connectable to the eyeglasses via either a hardwire, optical guide,
or radiofrequency link.
Inventors: |
Jannard; James; (Eastsound,
WA) |
Correspondence
Address: |
KNOBBE MARTENS OLSON & BEAR LLP
2040 MAIN STREET, FOURTEENTH FLOOR
IRVINE
CA
92614
US
|
Family ID: |
39536972 |
Appl. No.: |
12/820099 |
Filed: |
June 21, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11955249 |
Dec 12, 2007 |
7740353 |
|
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12820099 |
|
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60870064 |
Dec 14, 2006 |
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Current U.S.
Class: |
351/158 ;
359/630 |
Current CPC
Class: |
G02B 2027/0112 20130101;
A61B 5/021 20130101; G02B 2027/0169 20130101; A61B 5/6814 20130101;
G02C 11/10 20130101; G02B 27/017 20130101; G02B 27/0179 20130101;
Y10T 29/49826 20150115; G02B 2027/0178 20130101; A61B 5/02438
20130101; G02B 2027/014 20130101; A61B 5/14532 20130101; G02B
2027/0156 20130101; A61B 5/145 20130101; A61B 5/1112 20130101; A61B
5/14542 20130101; A61B 5/6803 20130101; G02B 27/0176 20130101; G02B
27/0172 20130101; H04N 9/3173 20130101 |
Class at
Publication: |
351/158 ;
359/630 |
International
Class: |
G02C 1/00 20060101
G02C001/00; G02B 27/01 20060101 G02B027/01 |
Claims
1. An optical display assembly comprising: a support bar defining
first and second ends, the first end of the support bar being
attached or attachable to a first lateral portion of a wearable
support structure, the second end of the support bar being attached
or attachable to a second lateral portion of the support structure,
the support bar being disposed across at least a portion of a
posterior region of the support structure; and at least one optical
element supported by the support bar, the optical element
comprising a connector having a proximal end being attachable to
the support bar, the optical element further comprising a
transmission surface being carried by the connector, the
transmission surface being configured to receive optical data for
displaying the optical data in the wearer's field of view.
2. The assembly of claim 1, wherein the support bar can be
removably positioned within the field of view of the wearer.
3. The assembly of claim 2, wherein the support bar is removably
positioned within the field of view of the wearer by moving the
support bar between a retracted position and a deployed position
relative to the support structure for adjusting the support bar
relative to an optical centerline of a retina of the wearer.
4. The optical element of claim 1, wherein the support bar pivots
relative to the support structure.
5. The assembly of claim 1, wherein the connector is adjustable
relative to the optical centerline of the retina.
6. The assembly of claim 5, wherein the optical element is
configured to project at least one optical beam toward the retina
of the wearer, and wherein a distal end of the connector is
configured to provide directional movement of the transmission
surface along at least X and Y axes for altering an angle of
incidence of the optical beam relative to the optical centerline of
the retina.
7. The assembly of claim 6, wherein the connector is further
configured to provide directional movement of the transmission
surface along a Z axis.
8. The assembly of claim 5, wherein the connector is configured as
a flexible shaft.
9. The assembly of claim 5, wherein the connector comprises a
plurality of interconnected links.
10. The assembly of claim 9, wherein the connector is adjustable
between a plurality of rigid positions.
11. The assembly of claim 5, wherein the connector is configured to
be removably stowable against the wearable support structure.
12. The assembly of claim 1, wherein the transmission surface is
tiltably connected to a distal end of the connector.
13. The optical element of claim 1, wherein the transmission
surface projects an optical beam onto a reflective surface, the
beam being reflected from the reflective surface onto the retina of
the wearer.
14. The assembly of claim 1, wherein the connector is
non-removable.
15. A wearable display assembly comprising: an eyeglass comprising
a frame and a pair of earstems extending posteriorly relative to
the frame, the frame comprising first and second lateral portions;
a swingbar defining first and second ends being attachable to the
respective ones of the first and second lateral portions of the
frame, the swingbar being removably positionable in the field of
view of the wearer; and at least one adjustable optical element
being attachable to the swingbar, the optical element comprising an
adjustable connector and a transmission surface being supported at
a distal end of the connector, the connector having proximal and
distal ends, the proximal end being attachable to the swingbar, the
distal end thereof being adjustable relative to the proximal end,
the transmission surface being configured to provide an optical
display to the wearer.
16. The assembly of claim 15, wherein the first and second ends of
the swingbar are attached to a posterior portion of the frame of
the eyeglass.
17. The assembly of claim 15, wherein the swingbar comprises an
elongate body extending between the first and second lateral
portions of the frame.
18. The assembly of claim 15, wherein the first and second ends of
the swingbar are pivotally attached to the frame.
19. A wearable display assembly comprising: an eyeglass comprising
a frame and a pair of earstems extending posteriorly relative to
the frame, the frame comprising first and second lateral portions;
an elongate swingbar defining first and second ends being
attachable to the respective ones of the first and second lateral
portions of the frame for removably positioning the swingbar in a
field of view of a wearer; and first and second optical elements
attached to the swingbar, the first and second optical elements
being configured to display optical data from at least one source
in the field of view of the wearer, each optical element defining
proximal and distal ends, the proximal ends thereof being attached
to the swingbar, the distal ends thereof being adjustable relative
to the proximal ends.
20. The assembly of claim 19, wherein the swingbar is removably
positioned within the field of view of the wearer by moving the
swingbar between a retracted position and a deployed position
relative to the frame for adjusting the swingbar relative to an
optical centerline of a retina of the wearer.
21. The assembly of claim 19, wherein the first and second ends of
the swingbar are pivotally attached to the frame.
22. The assembly of claim 19, wherein the first and second optical
elements project the optical data toward the retinas of the wearer.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 11/955,249, filed on Dec. 12, 2007, which
claims the benefit of U.S. Provisional Application No. 60/870,064,
filed Dec. 14, 2006, the entireties of each of which are
incorporated herein by reference.
BACKGROUND
[0002] A variety of techniques are available for providing visual
displays of graphical or video images to a wearer. In many
applications cathode ray tube type displays (CRTs), such as
televisions and computer monitors produce images for viewing. Such
devices suffer from several limitations. For example, CRTs are
bulky and consume substantial amounts of power, making them
undesirable for portable or head-mounted applications.
[0003] Matrix addressable displays, such as liquid crystal displays
and field emission displays, may be less bulky and consume less
power. However, typical matrix addressable displays utilize screens
that are several inches across. Such screens have limited use in
head-mounted applications or in applications where the display is
intended to occupy only a small portion of a wearer's field of
view. Such displays have been reduced in size, at the cost of
increasingly difficult processing and limited resolution or
brightness. Also, improving resolution of such displays typically
requires a significant increase in complexity.
[0004] One approach to overcoming many limitations of conventional
displays is a scanned beam display, such as that described in U.S.
Pat. No. 5,467,104 of Furness et al., entitled VIRTUAL RETINAL
DISPLAY (hereinafter "Furness"), which is incorporated herein by
reference. As shown diagrammatically in FIG. 1 of Furness, in one
embodiment of a scanned beam display 40, a scanning source 42
outputs a scanned beam of light that is coupled to a viewer's eye
44 by a beam combiner 46. In some scanned displays, the scanning
source 42 includes a scanner, such as scanning mirror or
acousto-optic scanner, that scans a modulated light beam onto a
viewer's retina. In other embodiments, the scanning source may
include one or more light emitters that are rotated through an
angular sweep.
[0005] The scanned light enters the eye 44 through the viewer's
pupil 48 and is imaged onto the retina 59 by the cornea. In
response to the scanned light the viewer perceives an image. In
another embodiment, the scanned source 42 scans the modulated light
beam onto a screen that the viewer observes. One example of such a
scanner suitable for either type of display is described in U.S.
Pat. No. 5,557,444 to Melville et al., entitled MINIATURE OPTICAL
SCANNER FOR A TWO-AXIS SCANNING SYSTEM, which is incorporated
herein by reference.
SUMMARY
[0006] An aspect of at least one of the embodiments disclosed
herein includes the realization that despite the development of
these and other technologies, there remains a need for a mounting
system for adjustably supporting the visual interface optical
element or projector with respect to a wearer's field of view.
[0007] In some embodiments, an adjustable optical element and
assembly can be provided to project at least one optical beam onto
a retina of a wearer. The retina of the wearer defines an optical
centerline. The optical element can be attachable to a wearable
support structure, such as an eyeglass frame, goggle, or other
wearable article. The optical element can comprise an adjustable
connector, a transmission component, and a transmission
surface.
[0008] The adjustable connector can have proximal and distal ends.
The proximal end can be attachable to the support structure, and
the distal end thereof can be adjustable relative to the proximal
end. The transmission component can be configured to receive
optical data from at least one source module. The transmission
component can also be configured to transmit the optical data along
a data path toward the distal end of the adjustable connector.
[0009] The transmission surface can be disposed on the distal end
of the adjustable connector along the data path. The transmission
surface can be configured to receive the optical data from the
transmission component and to project at least one optical beam
onto the retina of the wearer at an angle of incidence relative to
the optical centerline. The optical beam can be representative of
the optical data. The distal end of the adjustable connector is
preferably configured to provide directional movement of the
transmission surface along at least X and Y axis for altering the
angle of incidence of the optical beam in order to ensure that the
optical beam is properly projected onto the retina.
[0010] In accordance with one implementation, the transmission
surface can be tiltably connected to the distal end of the
adjustable connector. The adjustable connector can define a
connector axis and the transmission surface can be tiltable about
the connector axis. The adjustable connector can also be further
configured to provide directional movement of the transmission
surface along a Z axis.
[0011] In other implementations, the adjustable connector can be
configured as a flexible shaft. The adjustable connector can also
comprise a plurality of interconnected links. Additionally, the
adjustable connector can be adjustable between a plurality of rigid
positions. Thus, the adjustable connector can be configured to
provide for removable positioning of the transmission surface
within a field of view of the wearer. Further, the adjustable
connector can be configured to be removably stowable against the
wearable support structure.
[0012] In accordance with yet other implementations, the
transmission surface can project the optical beam onto a reflective
surface. In such an embodiment, the beam can be reflected from the
reflective surface onto the retina of the wearer.
[0013] In yet other implementations, the transmission component can
be mounted on the adjustable connector. For example, the
transmission component can include an optical fiber.
[0014] In accordance with another embodiment, the eyeglass can
include a frame and first and second earstems. The frame can define
first and second sides, and anterior and posterior portions. The
first and second earstems can each define outer and inner portions.
The first and second earstems can be connectable to the respective
ones of the first and second sides of the frame. In this regard,
first and second optical elements can be connected to the eyeglass,
and each of the first and second optical elements can correspond to
a respective one of left and right eyes of the wearer.
[0015] In such an embodiment, the optical elements can be
attachable to the eyeglass to produce a variety of potential
assemblies. For example, each proximate end of each of the first
and second optical elements can be connected to the respective ones
of the outer portions of the left and right earstems of the
eyeglass. Alternatively, each proximate end of each of the first
and second optical elements can be connected to the anterior
portion of the frame of the eyeglass. Furthermore, each proximate
end of each of the first and second optical elements can be
connected to the posterior portion of the frame of the
eyeglass.
[0016] In accordance with yet another embodiment, each adjustable
connector can include at least one orientation indicator for
allowing symmetrical positioning of the first and second adjustable
connectors. In yet another embodiment, each adjustable connector
can comprise a plurality of links, and each link can include the
orientation indicator for allowing symmetrical positioning of each
respective link of the first and second adjustable connectors.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The above-mentioned and other features of the inventions
disclosed herein are described below with reference to the drawings
of the preferred embodiments. The illustrated embodiments are
intended to illustrate, but not to limit the inventions. The
drawings contain the following figures:
[0018] FIG. 1 is a front perspective view of a projection assembly
including an eyeglass, an audio output capability and a visual
output capability provided by at least one adjustable optical
element, in accordance with an embodiment.
[0019] FIG. 2 is a bottom plan view of the embodiment illustrated
in FIG. 1 showing first and second adjustable optical elements of
the projection assembly.
[0020] FIG. 3 illustrates exemplary electronics used in the optical
element for providing retinal projection of an image onto the
retina of a wearer.
[0021] FIG. 4A is a side cross-sectional view of the eye
illustrating an optical center line, an angle of incidence of an
optical beam, a range of allowability, and a retina, in accordance
with an embodiment.
[0022] FIG. 4B is a perspective view of the eye illustrating the
optical center line, the range of allowability, and the angle of
incidence, in accordance with an embodiment.
[0023] FIG. 4C is a perspective view of a horizontal cross-section
of the eye depicted in FIG. 4B.
[0024] FIG. 5 is a top plan view of an assembly illustrating the
placement of the optical element within the wearer's right field of
view and within the range of allowability.
[0025] FIG. 6 is a perspective view of an eyeglass illustrating the
x, y and z coordinate axes, as well as respective pitch, yaw and
roll movements about the axes for illustrating exemplary directions
in which the optical element can be adjusted according to an
embodiment.
[0026] FIG. 7A is a side view of the optical element according to
another embodiment.
[0027] FIG. 7B is a top view of the optical element depicted in
FIG. 7A.
[0028] FIG. 7C is a rear perspective view of the optical element
illustrated in FIG. 7A and further illustrating projection of the
optical beam onto the retina of the eye of the wearer, according to
another embodiment.
[0029] FIG. 8A is a side view of two links used in an adjustable
connector of the optical element, in accordance with yet another
embodiment.
[0030] FIG. 8B is a side view of links of the adjustable connector
in accordance with another embodiment.
[0031] FIG. 8C is a side view of links of the adjustable connector
in accordance with yet another embodiment.
[0032] FIG. 8D is a side view of links of the adjustable connector
in accordance with yet another embodiment.
[0033] FIG. 9A is a top view of links of the adjustable connector
including an orientation indicator, in accordance with an
embodiment.
[0034] FIG. 9B is a top view of links of the adjustable connector
wherein a link is see-through corresponding to an orientation
indicator, in accordance with yet another embodiment.
[0035] FIG. 10A is a perspective view of links of the adjustable
connector illustrating ridges for providing ridged engagement
between the links in accordance with an embodiment.
[0036] FIG. 10B is a perspective view of a link including a rubber
ring for providing ridged engagement between an adjacent link in
accordance with yet another embodiment.
[0037] FIG. 10C is a perspective view of a link including a
frictional surface for providing ridged engagement with an adjacent
link in accordance with yet embodiment.
[0038] FIG. 11A is a perspective view of the optical element
illustrating tiltability of a transmission surface in accordance
with an embodiment.
[0039] FIG. 11B is a perspective view of the optical element
illustrating the pivotability of the transmission surface in
accordance with yet another embodiment.
[0040] FIG. 11C is a perspective view of the optical element
illustrating the tiltability and rotatability of the transmission
surface in accordance with yet another embodiment.
[0041] FIG. 12A is a rear view of another embodiment wherein the
projection assembly is provided on a frame of the eyeglass and
includes a swingbar which supports the first and second adjustable
optical elements, wherein the swingbar is in a retracted position,
in accordance with an embodiment.
[0042] FIG. 12B is a rear view of the assembly of FIG. 12A,
illustrating the swingbar in a deployed position.
[0043] FIG. 12C is a top plan view of the assembly of FIG. 12B.
DETAILED DESCRIPTION
[0044] The inventions herein described provide a portable visual
display capability to a wearable article. Although described below
primarily in combination with an eyeglass frame, the adjustable
visual optical element can be readily incorporated into any of a
variety of alternative support structures. For example, in addition
to any of a variety of eyeglass configurations including plano or
prescription sunglasses or prescription waterwhite eyeglasses,
embodiments of the adjustable optical element may be carried by
goggles, such as ski goggles, or motorcycle motocross goggles,
military goggles, industrial safety glasses or goggles, or other
protective eyewear. Alternatively, the visual optical element may
be carried by any of a variety of articles typically worn on the
wearer's head, such as headphones, earphones, a hat, helmet, mask,
visor, headband, hair band or the like as will be apparent to those
of skill in the art in view of the disclosure herein. The optical
alignment of the optical element can be adjustable and locked at
the point of sale or selectively adjustable by the wearer.
[0045] The adjustable optical element can be configured to deliver
visual information to the eye. This may be accomplished by
projecting an image or other data directly on the retina, or by
displaying an image on a surface within the wearer's field of view.
The optical element may be driven by any of a wide variety of
source electronics, either carried on board the eyeglasses, or in
communication with the eyeglasses from a remote source either via
hard wiring or wireless communication.
[0046] In general, source electronics may include a computing
and/or memory device, such as a computer, a server, a network,
drive, RAM, ROM or other non-removable or removable memory chip.
The source electronics may alternatively comprise a digital audio
visual player, such as an MP3 player, an ipod, or a multi-media
player such as a portable DVD player, or other visual or audio
visual memory media which may be developed. The source electronics
can also accommodate a high band wireless connection for both audio
and video, and can include an onboard chipset to control the
incoming wireless a/v, volume, etc.
[0047] The source electronics may alternatively comprise any of a
variety of radiofrequency transmission sources such as a
terrestrial based or satellite based radio, cellular telephone, or
customized wireless signal source. A personal digital assistant
(PDA), a blackberry, pager, or any of a variety of alternative
PDA's and email enabled devices, notebook computers, or other
devices capable of generating a visual (e.g. text and/or image)
signal may also be used to drive the optical element.
[0048] In alternate embodiments, the source electronics may include
any of a variety of devices capable generating a visual text, alpha
numeric or still frame or moving image output. For example, time
measuring devices such as clocks or timers, or sensors for
measuring a body biometric, such as wearer's pulse, temperature, or
blood parameters such as blood oxygen saturation, blood glucose
level, or blood pressure may be used. The sensor may be configured
to provide an alarm, or a signal indicative of a time or a sensed
biometric to a wearer when certain threshold levels are measured,
or at periodic intervals. Such thresholds and periodic intervals
may be selected or programmed by the wearer, or may be preset.
[0049] In other embodiments, the sensor of the source electronics
may measure distance or determine positional location. For example,
the source electronics may provide a visual image including
information derived from a Global Positioning System (GPS) or an
altimeter. Such sensors may be used to determine the distance from
an object, including the distance from a location, distance
traveled from a starting point, or the distance to a target. Such
distance sensor may also be configured to provide an alarm, or a
signal indicative of a distance to a wearer when certain threshold
levels are measured, or during periodic intervals.
[0050] The source electronics may provide a visual indicium of any
of a variety of time varying parameters, such as speed,
acceleration, or jerk (e.g. the rate of change in acceleration).
The source electronics may provide a visual signal indicative of an
instantaneous or an average time varying parameter at fixed or at
wearer selected intervals. For example, in one embodiment, the
source electronics incorporates a GPS receiver and position
indicating electronics to provide a display of a map as well as an
indicator of the location of the wearer on the map.
[0051] The source electronics may be external to the wearable
electronic interface, in which case a communication link is
provided to electronically couple the source electronics with the
optical element. The communication link may be either a direct
electrical coupling (for example hard wiring, or inductive coupling
through the body), or a wireless protocol.
[0052] Wireless source electronics may be infrared enabled or
radiofrequency communication enabled, such as Bluetooth enabled.
For example, in one embodiment, the source includes a Bluetooth
enabled transmitter for either video or audio and video signals.
The source electronics may alternatively comprise a hand held
device, such as a night vision scope, telescope with optical and/or
digital zoom, or digital camera for still photos or
cinematography.
[0053] As mentioned above, the optical element can be utilized in
combination with a wearable article. In this regard, the wearable
article may include various types of support structures that can be
worn on the head or torso of a wearer. However, it is also
contemplated that the optical element can be utilized in
combination with other structures that are not worn by the
wearer.
[0054] For example, the optical element can be mounted on a
structure so as to position the optical element to properly
facilitate the use of the optical element, such as on a headrest of
a seat or other similar structure with respect to which the
wearer's head is frequently oriented. However, as illustrated in
the figures, the optical element is described in the context of a
pair of eyeglasses, and more specifically, in the context of a dual
lens pair of eyeglasses. Furthermore, according to various
embodiments, other capabilities can be incorporated into the
support structure, such as audio and/or tactile feedback
capabilities.
[0055] Referring now to FIG. 1, a projection assembly is provided
that includes a support structure, such as an eyeglass 10 with a
frame 12 which comprises a first orbital 14 and a second orbital 16
connected by a bridge 18. The first orbital can support a first
lens 20, and the second orbital 16 can support a second lens 22. As
is understood in the eyeglass arts, the first and second orbitals
14, 16 can surround the entirety of the corresponding lens, or only
a portion of the lens, sufficient to support the lens in the
wearer's field of view. Frameless configurations may also be used,
although a frame may be desirable if wires are needed to extend
between the left and right ear stems. As an alternative to separate
first and second lenses 20, 22, the eyeglass 10 can be provided
with a single, unitary lens, which extends throughout the entire
desired range of vision of both the wearer's right and left
eyes.
[0056] A first earstem 24, and a second earstem 26 can be connected
to the frame 12. Preferably, each earstem is hingably or movably
connected to the frame 12, to enable folding as is understood in
the art. However, a hingeless frame can alternatively be used.
[0057] In an embodiment wherein the eyeglass 10 is provided with
audio capability, a first earstem 24 can be used to support a first
speaker 28 by way of a first speaker support 30. Preferably, the
first speaker support 30 is adjustable such as by construction from
a flexible material or structure, or an articulating structure as
will be discussed in greater detail below. In an embodiment
configured for stereo sound or dual mono-sound, a second speaker 32
is preferably supported by the second earstem 26, by way of a
second speaker support 34.
[0058] As will be discussed in greater detail below, one or both of
the first and second earstems 24, 26 can house electronics 36
necessary for the operation of the audio capability of the eyeglass
10 and/or the visual display capabilities, described below. The
electronics 36 can be provided with any of a variety of controls
38, such as dials, push buttons, switches or other such controls
depending upon the desired functionality. Further, as described in
greater detail below, the electronics 36 can be in electrical or
optical communication with at least one transmission component 40
for providing the visual display capability of the assembly.
[0059] In an embodiment configured to direct retinal projection, at
least one optical element 50 is operative to project at least one
optical beam onto a retina of the wearer. As such, the optical
element 50 is in optical and/or electrical communication with the
electronics 36 which provide the optical element 50 with optical
image data that is utilized to produce the optical beam. The
optical element 50 can include the transmission component 40, as
described below.
[0060] The optical beam projected by the optical element is
representative of the optical image data and can be transmitted to
the retina of the wearer through a variety of optical and
electrical components as known in the art.
[0061] Referring now to FIG. 2, there is illustrated a bottom plan
view of the eyeglass 10 illustrated in FIG. 1. According to various
embodiments discussed herein, the optical element 50 can be a first
optical element 50 that is adjustably positionable within the
wearer's right eye field of view. The first optical element 50
comprises an adjustable connector 56, a first transmission
component 53, and a first transmission surface 54. The first
transmission surface 54 can be directed towards the eye of the
wearer or towards the first lens 20 or other image reflecting
surface. In this regard, the optical beam projected by the optical
element 50 can be directly projected toward the eye of the wearer
or can be reflected toward the eye of the wearer such as by
reflection off of the first lens 20. Furthermore, the optical
element can be utilized in conjunction with electrochromic or
photochromic lenses for indoor/outdoor viewing.
[0062] The optical element 50 can be mounted on either a posterior
portion 60 or an anterior portion 62 of the frame 12, relative to
the lens. Alternatively, the optical element can also be mounted
along lateral portion 64 or medial a portion 66 of either of the
first or second earstems 24, 26. Thus, the frame 12 can be
positioned intermediate the eye of the wearer and the optical
element, or the optical element can be positioned intermediate the
eye and the frame 12. Such configurations can be provided in
response to whether direct or indirect projection of the optical
beam is desired, and other design or desired performance criteria.
In an implementation, the first optical element 50 can be paired
with, used in combination with, and/or used separately from a
second optical element 70. Similar to the first optical element 50,
the second optical element 70 can also include a second adjustable
connector 72, a second transmission component 74, and a second
transmission surface 76.
[0063] Although various embodiments illustrated herein depict the
use of both first and second optical elements 50, 70, it is
contemplated that embodiments can utilize a single optical element,
and that the optical element can also incorporate various
combinations of the features discussed herein. For purposes of
simplifying the present description, it is noted that where the
optical element is referred to in singular form, such as the first
optical element 50 or the second optical element 70, the described
features can also be incorporated into the other one of the first
and second optical elements 50, 70. Therefore, reference to the
first optical element 50 alone should not be construed as limiting.
Additionally, as mentioned above, it is contemplated that the first
optical element 50 can be used alone, and therefore, embodiments
can incorporate one or two optical elements, as desired.
[0064] Referring now to FIG. 2, the first and second optical
elements 50, 70 can be adjustably supported on the eyeglass 10, by
first and second adjustable connectors 52, 72, respectively. As
discussed herein, and as illustrated in the accompanying figures,
the first and second adjustable connectors 52, 72 can be provided
in a variety of configurations and can incorporate various useful
features, as desired. In a simple embodiment, the first and second
adjustable connectors 52, 72 can comprise any of a variety of
flexible support elements, articulating arm elements, telescopic
elements, or other extension structures. The flexible support
elements can be simple gooseneck supports or other supports as
described further below.
[0065] The first adjustable connector 52 can have a proximal end 80
and a distal end 82, and the second adjustable connector 72 can
have a proximal end 84 and a distal end 86. As illustrated in FIG.
2, the proximal ends 80, 82 of the respective ones of the first and
second adjustable connectors 52, 54 can be attached to a support
structure, such as the frame 12. In this regard, the first and
second adjustable connectors 50, 52 can comprise any of a variety
of structures that can permit the distal ends 84, 86 to be
adjustable relative to the respective ones of the proximal ends 80,
82.
[0066] As mentioned above, certain implementations may utilize a
single optical element 50 for projecting the optical beam to one of
the right or left eyes of the wearer. Depending on the application,
use of a single optical element may be sufficient. However, in
embodiments where the optical beam is preferably directed to both
of the wearer's eyes, the second optical element 70 can also be
used. As such, as illustrated in FIG. 2, the first optical element
50 can be adjustably positioned within the wearer's right eye field
of view while the second optical element 70 can be adjustably
positioned within the wearer's left eye field of view.
[0067] The electronics 36 utilized by the optical element can
incorporate a variety of components and can be variously modified
by one of skill in the art using present and prospective knowledge
related to retinal projection and related technologies in
accordance with implementations.
[0068] For example, as illustrated in the embodiment of FIG. 3, the
electronics 36 can include an electronics module 100 that receives
image data from an image source 102. The image data can include
information utilizable to create an image, such as placement and
intensity of color in the image. The electronics module 100, as is
known in the art, can be used to decipher the image data such that
it can be optically portrayed by the electronics 36. In this
regard, the electronics 36 can also include various light sources
104, color combining optics 106, a photonics module 108, and
modulators 110. These components can be in electronic communication
with the electronic module 100 and receive the deciphered imaged
data therefrom and create the image based on the deciphered image
data.
[0069] The light sources 104 can paint the image in RGB and be
modulated and combined utilizing the color combining optics 106,
the photonics module 108, and the modulators 110. Finally, a
scanner module 112, which can be mounted on the optical element,
can project the optical beam onto the retina of the wearer in order
to raster scan or "paint" the optical image onto the retina. In
this regard, the scanner module 112 can include various micro
electro-mechanical structures such as scanners 114, a diffuser 115,
and a focusing lens 116. Preferably, the image is painted in RGB at
the rate of at least approximately 30 times per minute for premium
resolution. However, other scanning rates can also be used.
[0070] As mentioned above, embodiments can be favorably implemented
in combination with various electronics 36; it is also contemplated
that with the advance of science, new and improved electrical and
optical components can become available and be incorporated into
embodiments. Furthermore, the optical beam can be directly or
indirectly projected toward the eye of the wearer. Therefore,
although FIG. 3, as well as other figures, illustrate direct
retinal projection, it is contemplated that the optical beam can be
reflected off of other structures incorporated into the optical
element, such as the first and second lenses 20, 22 of the eyeglass
10 or other reflective surface.
[0071] In accordance with some embodiments, the scanner module 112,
as discussed above, can be incorporated into the optical element
and be configured to provide the optical beam which is projected
toward the eye of the wearer. Thus, the first and second
transmission surfaces 56, 76 of the first and second optical
elements 50, 70 can each be configured to include the scanner
module 112. As such, the first and second transmission surfaces 56,
76 can project the optical beam toward the eye of the wearer within
an angular range of allowability.
[0072] In addition, as mentioned above, the optical element 50 can
also be formed to include the transmission component 40. The
transmission component 40 can communicate the image data from the
light sources 104 to the scanner module 112. In some embodiments,
the transmission component 40 can be mounted on the adjustable
connector 52, and can include an optical fiber or waveguide.
However, it is also contemplated that where the scanner module 112
is separate from the first and second transmission surfaces 56, 76,
the transmission component 40 may not be disposed on the adjustable
connector, as described below.
[0073] However, although embodiments can provide that the first and
second transmission surfaces 56, 76 include the scanner module 112,
it is also contemplated that the scanner module 112 can be separate
from the first and second transmission surfaces 56, 76. For
example, it is contemplated that the first and second transmission
surfaces 56, 76 can include at least one optical minor that
optically communicates with the scanner module 112 to project the
optical beam onto the retina.
[0074] Referring now to FIGS. 4A-C, the eye of the wearer is
schematically illustrated. As is known in the optical arts, the
retina of the eye serves as an exit pupil for light entering the
eye. The eye includes a pupil 120 that serves as an exit pupil for
the eye of the wearer. Light entering the pupil of the eye can be
focused onto the retina of the eye, where the focused light excites
rods and cones of the retinal tissue and consequently causes
detection and transmission of an image to the brain. Such
capabilities and the operations of the human eye are basically
known the art. In retinal projection technology however, an image
is scanned onto the retina of the wearer by the scanner module 112.
The scanner module 112 can implement a raster scanning of the
optical beam in order to "paint" the image onto the retina of the
wearer.
[0075] According to embodiments, the raster scanning of the optical
beam onto the retina of the wearer can be optimized when the
transmission surface 56 projects the optical beam at an angle of
incidence 122 that falls within the range of acceptance 118. The
range of acceptance 118 can be defined as the maximum angular
displacement of the optical beam with respect to an optical center
line (OCL) of the retina 126. Since the absolute orientation of the
OCL will vary as the eye moves, embodiments can normally be
designed with the assumption that the OCL is aligned in the normal,
straight ahead viewing position. Thus, retina projection can be
optimized by ensuring that the optical beam is projected onto the
retina 126 within the range of acceptance 118. Such can ensure that
the optical beam reaches the retina 128 and is therefore detectible
and utilizable in forming a perceivable image.
[0076] FIG. 4A illustrates a side cross-sectional view of the eye
128 illustrating the optical center line 124 intersecting the
retina 126. The angle of incidence 122 is depicted as falling
within the range of acceptance 118 in order to allow the optical
beam to be properly projected onto and detected by the retina 126
of the wearer. While FIG. 4A illustrates a vertical cross-sectional
side view, FIG. 4B illustrates that the range of allowability 118
extends also in the horizontal direction. Thus, according to an
implementation, the optical beam is preferably projected onto the
retina 126 within a range of acceptance 118, which can be conical
in shape. The cone is centered about an axis, such as a normal
straight ahead line of sight. However, although the range of
acceptance 118 is three-dimensionally depicted as being conical,
the optimal range of acceptance may not be precisely conical due to
a variety of factors.
[0077] FIG. 4C illustrates a horizontal cross-sectional view of the
eye 128 wherein the range of acceptance 118, the angle of incidence
122, and the optical center line 124 are each depicted. Retinal
projection can be optimized in embodiments by ensuring that the
optical beam projected by the transmission surface 56 is projected
onto the retina of the wearer at an angle of incidence 122 that
falls within the range of acceptance 118. The angle of incidence
122 can be defined as the angle measured between the optical beam
and the optical center line 124. The angle of incidence 122 is
generally no greater than about 40.degree. and in certain
embodiments no greater than about 20.degree..
[0078] Referring now to FIG. 5, a top plan view of the eyeglass 10,
the first optical element 50, and the eye 128 of the wearer is
illustrated. The transmission surface 56 should be positioned
within the right eye field view of the wearer such that the optical
beam is projected onto the retina 126 of the eye 128 within the
range of acceptance 118. The transmission surface 56 can be
positioned within in the A-P axis outside of an "eyelash zone" of
the eye, which zone can be radially measured as extending
approximately as far as the eyelashes of the wearer. Such
positioning can be implemented where the optical element is
disposed on the posterior portion 62 of the frame 12, as shown in
FIGS. 1-2.
[0079] The positioning of the transmission surface 56 with respect
to the eye 128 can affect the apparent size of the image produced
by the optical beam scanned onto the retina 126. Thus, the first
adjustable connector 52 can be adjusted as required in order to
produce an image of desired size. Furthermore, the transmission
surface 56 can also be adjusted in order to properly focus the
image onto the retina 126.
[0080] While FIG. 5 illustrates that the first optical element 50
can be attached to the anterior portion 62 of the frame 12, the
first optical element 50 can likewise be attached to the posterior
portion 60 of the frame 12. Furthermore, FIG. 5 illustrates that
the optical center line 124 can be substantially aligned with the
wearer's straight ahead line of sight 130. The straight ahead line
of sight can be defined as that line that extends longitudinally
forward from the eye 128 of the wearer. Because the eyes of the
wearer can be moved relative to the head of the wearer and
therefore allow the wearer to look in different directions while
the head is maintained stable, the straight ahead line of sight 130
shall refer to the longitudinal line of sight that projects
forwardly from the head.
[0081] The embodiment illustrated in FIG. 5 illustrates that the
optical center line 124 can be substantially aligned with the
straight ahead line of sight 130. However, embodiments are not
limited to positioning the transmission surface 56 within a range
of allowability defined by the straight ahead line of sight 130.
Instead, it is also contemplated that the transmission surface 56
can be laterally positioned relative to the eye such that when the
eye is rotated, for example, to the right, the transmission surface
56 would then fall within the range of allowability 118 in order to
allow the optical element to "paint" the image onto the retina of
the wearer. Therefore, although embodiments contemplate that the
optical center line 124 is substantially collinear with the
straight ahead line of sight 130, it is also contemplated that
other uses of the optical element can be made such as to allow the
wearer to selectively access the retinal projection or in other
words, allow the retina projection to take place.
[0082] Referring now to FIG. 6, there is provided an illustration
of X, Y, and Z coordinate axes, in which directions the adjustable
connectors 52, 72 can be selectively adjusted. In addition, FIG. 6
also illustrates other directional movements of the adjustable
connector 52, 72 in the pitch (identified by the Greek letter
.psi.), yaw (identified by the Greek letter .phi.), and roll
(identified by the Greek letter .omega.) directions. Each of the
directions of movement illustrated in FIG. 6 also represents a
respective degree of freedom. The term "degree of freedom" can be
used to refer to movement in any of three translational directions
or three rotational directions. Translational movement can take
place in the direction of any of the X, Y, or Z axis. Rotational
movement can take place about any of the X, Y, or Z axis, as
respectively illustrated by the Greek letters .psi., .phi., and
.omega..
[0083] It is contemplated that the various embodiments of the
optical element can be adjustable in several, if not all, of the
directions illustrated in FIG. 6. Although such adjustability could
be advantageous, it is not a required feature for various
embodiments. Thus, several of the embodiments disclosed herein can
advantageously incorporate directional movement in at least two or
three of the directions shown in FIG. 6.
[0084] The first and second adjustable connectors 52, 72 can be
variously configured in order to provide adjustability of the
respective ones of the first and second transmission surfaces 56,
76. FIGS. 7A-C illustrate one embodiment of the adjustable
connector 52, as shown on a like side of the eyeglass 10. As shown
in FIG. 7A, the proximate end 80 of the first adjustable connector
52 can be pivotally attached to the frame 12 of the eyeglass 10.
Although the proximate end 80 is illustrated as being attached to a
central position of the anterior portion 62 of the frame 12, it is
contemplated that the proximal end 80 can be attached in a variety
of other configurations. For example, instead of being vertically
pivotally attached, the proximate end 80 can be horizontally
pivotally attached, or rigidly attached, and/or removably attached
to the anterior portion 62 of the frame 12.
[0085] The first optical element 50 can be configured such that the
distal end 82 of the adjustable connector 52 is adjustable relative
to the proximate end 80 thereof. In this regard, adjustment of the
distal end 82 likewise provides for the adjustability of the
transmission surface 56 in order to ensure that the optical beam
can be optimally projected on to the retina of the wearer. The
adjustability of the first optical element 50 can be accomplished
through a variety of structures, such as those embodiments
illustrated herein. For example, FIGS. 7A-B illustrate that the
adjustable connector 52 can be comprised of one or more links 150.
The links 150 can be interconnectable in an end-to-end fashion and
can provide for several degrees of freedom of movement of the
adjustable connector 52. In addition, the adjustable connector 52
can be configured to provide telescoping capability, be detachable,
and be hollow or otherwise provide a slot wherein wiring can be
installed if necessary.
[0086] The embodiment of the adjustable connector 52 illustrated in
FIGS. 7A-B can include a plurality of interconnected links 150 that
provide numerous degrees of freedom to the adjustable connector 52.
As shown in FIG. 7C, with the various degrees of freedom, the
adjustable connector 52 can enable the optical element 50 to be
properly positioned such that the transmission surface 56 can
project the optical beam on to the retina 126 of the wearer at an
angle of incidence 122 that is within the range of allowability
118. Thus, utilizing the various degrees of freedom of the
adjustable connector 52, the transmission surface 56 can be
properly positioned to project the optical beam within the range of
acceptability 118.
[0087] As illustrated in FIGS. 7A-B, each of the links 150 can be
configured to mate with a respective link 150 at a link joint 152.
As shown, the link joints 152 can be configured to allow the
adjustable connector 52 to pitch about the X axis or to yaw about
the Y axis.
[0088] Further, the optical element 50 can also be configured to
include a transmitter joint 154 that is disposed intermediate the
distal end 82 of the adjustable connector 52 and the transmission
surface 56. In some embodiments, the transmission surface 56 can be
housed in a transmitter 160 that is disposed at the distal end 82
of the adjustable connector 52. In some implementations, the
transmitter joint 154 can allow the transmitter 160 to rotate with
respect to the distal end 82 of the adjustable connector 52.
Therefore, depending upon the orientation and attitude of each link
joint 152 and the transmitter joint 154, the optical element 50 can
be adjusted to a desired orientation, as shown in FIG. 7C, in order
to properly position the transmission surface 56 to project the
optical beam on to the retina 126 at an angle of incidence 122
within the range of acceptability 118.
[0089] Referring now to FIGS. 8A-8C, an embodiment of the link
joint 152 shown in FIG. 7A-B is provided in greater detail. FIG. 8A
shows the link joint 152 in an assembled configuration where links
150' and 150'' interconnect to provide pivotal motion of the
adjustable connector 52 about a link axis 162. As shown in FIG. 8A,
each link 150', 150'' can include a distal end 164', 164'', the
distal ends 164', 164'' can be configured to include mating steps
166', 166''. In accordance with an implementation, the mating steps
can each include an axial passage through which a fastener, such as
a rivet, bolt, or screw can be inserted to interconnect the lengths
150', 150''.
[0090] Referring now to FIG. 8B, another embodiment of the link
joint 152 is illustrated. As shown in FIG. 8B, the lengths 170,
170' can be configured to include additional mating steps 172',
172''. Although the mating steps 172', 172'' can be similarly
configured to include an axial passage similarly shown in FIG. 8A,
it is contemplated that the mating step 172' can include opposing
axial projections 174 that are sized and configured to be received
within receiving cavities 176 of the mating steps 172''. In this
regard, according to an embodiment, the link 170' can be rotatably
coupled to the link 170'' through the insertion of the projections
174 into the receiving cavities 176. According to an
implementation, the projections 174 can be axially aligned with
respect to each other and with respect to the receiving cavities
176 in order to provide pivotal movement of the link 170' relative
to the link 170'' at the link joint 152.
[0091] According to yet another embodiment, FIG. 8C illustrates a
simplified link joint 152 wherein link 180' and link 180'' can each
be configured to be substantially planar in shape. Further, the
links 180', 180'' can each be and configured to include an axial
passage 182 through which a connector 184 can be inserted to
pivotally couple length 180' to link 180'' at a link joint 152.
Such an embodiment can be advantageous because it can allow link
180' to pivot fully with respect to link 180'', thus not having its
rotational movement restricted as may be the case in the
embodiments illustrated in FIGS. 8A-B.
[0092] In accordance with yet another embodiment, the link joint
152 can be configured to provide ball-and-socket interconnection
between adjacent links 185', 185'', as illustrated in FIG. 8D. For
example, the link 185' can be formed to include a spherical male
end 186 that is receivable within a receiving end 188 of the
adjacent link 185''. This ball-and-socket embodiment of the joint
link 152 can allow for multi-directional movement of the link 185'
with respect to the adjacent link 185''. Such a configuration can
also be advantageous over other configurations noted in FIGS. 8A-C.
Furthermore, it is contemplated that other ball-and-socket
connections can be implemented in order to provide the advantageous
qualities described herein.
[0093] Referring now to FIGS. 9A-B, it is also contemplated that
the optical element 50 can include an orientation indicator 190
that allows the wearer to determine the orientation of the optical
element 50 with respect to the support structure. The term
"orientation indicator" can be used to refer to at least one
orientation indicator disposed on a portion of the optical element
50, or to refer to several indicators used in combination to
collectively provide information related to the orientation of the
optical element 50 as positioned with respect to the support
structure.
[0094] The orientation indicator can be useful for a variety of
purposes. For example, in an embodiment of the optical element 50,
the adjustable connector 52 can be configured to be adjustable
between a nested position and an extended position, as described
herein. In the nested position, the optical element could be
compactly nested in order to facilitate storage of the optical
element. In such an embodiment, the optical element can be
configured to be removably attached to the structure such that the
optical element, once removed, is adjusted to its nested position
in order to facilitate storage of the optical element.
[0095] Alternatively, and as discussed further herein, the optical
element 50 can be storable or nested on the support structure
itself. In such an embodiment, the optical element 50 can be
adjusted to its nested position when not in use.
[0096] In either of the above-mentioned embodiments, the optical
element 50 can be adjusted from its nested position to its extended
position and the orientation indicator 190 can be used to
facilitate the quick and repeatable positioning of the optical
element to the extended position. For example, the orientation
indicator 190 can be inspected by the wearer after the optical
element 50 has been adjusted into a proper extended position
wherein the optical beam is projected onto the retina within the
range of allowability. Then, the wearer can visually inspect the
orientation indicator 190 so that the wearer can learn precisely
how the adjustable connector 52 should be oriented to facilitate
quick and repeatable adjustment of the optical element 50 to the
extended position at which the optical element 50 is effective.
[0097] As shown in FIG. 9A, the orientation indicator 190 can
include a plurality of radially extending markings 192 disposed on
a distal end 194' of a link 196'. Additionally, a guide marking 198
can be disposed on a distal end 194'' of an adjacent link 196''.
The embodiment illustrated in FIG. 9A can correspond to either of
the link joints 152 illustrated in FIG. 8A or 8B. According to an
implementation, the orientation indicator 190 can comprise both the
plurality of markings 192 and the guide marking 198. In one
embodiment, the plurality of markings can include letters, numbers,
or other alpha-numeric digits. As shown in FIG. 9A, the plurality
of markings 192 can simply include radially extending lines, which
can be configured to be of varying lengths. The plurality of
markings 192 is preferably configured to be easily read and
perceived by the wearer. In addition, the guide marking can also
comprise any of a variety of alpha-numeric characters, symbols or
other shapes that can be used to point to or otherwise correspond
to one of the plurality of markings 192 in a given orientation. As
illustrated in FIG. 9A, the adjacent link 196'' can be rotatably
adjusted with respect to the link 196', and the guide marking 198
can be used to allow the wearer to visually adjudge the orientation
of the adjacent link 196'' with respect to the link 196'.
[0098] Referring now to FIG. 9B, another embodiment of the
orientation indicator 190 is shown. In such an embodiment, at least
an upper link 200' can be made at least partially of a see-through
material, such as a transparent, translucent or otherwise clear
plastic. The link joint 152 illustrated in FIG. 9B can correspond
to the link joint 152 illustrated in FIG. 8C. The upper link 200'
can mate with a lower link 200'' to form the link joint 152.
[0099] Similar to the embodiment illustrated in FIG. 9A, the
orientation indicator 190 shown in FIG. 9B can also include the
plurality of markings 192 and at least one guide mark 198. Because
the upper link 200' is see-through, it is contemplated that the
plurality of markings 192 and/or the guide marking 198 can be
selectively disposed on either of the upper link 200' and/or the
lower link 200''. As such, when adjusting the adjustable connector
52 of the optical element 50, the wearer can refer to the
orientation indicator 190 in order to adjudge the relative
positioning of the links 200', 200''. It is contemplated that
various other embodiments can be implemented utilizing these
teachings.
[0100] In accordance with yet another embodiment, it is
contemplated that the first and second optical elements 50, 70 can
each have an orientation indicator 190. In such an embodiment, the
adjustable connectors 52, 72 can be symmetrically positioned with
respect to each other by use of the orientation indicators 190.
Such an embodiment can tend to ensure that the optical beams
projected from the transmission surfaces 56, 76 of the respective
ones of the first and second optical elements 50, 70 approach the
eye at similar angular orientations. In this regard, a visual echo
can be avoided, or at least the optical beams can be oriented
closely enough such that the brain simply blends the images
provided by the optical beams. Therefore, as discussed further
below, the first optical element 50 can be adjusted to be in a
perfect minor image location relative to the second optical element
70, in accordance with an embodiment.
[0101] Referring now to FIGS. 10A-C, the optical element 50 can
also be configured with the adjustable connector 52 being
adjustable between a plurality of rigid positions. The rigid
positions of the adjustable connector 52 can refer to a discrete
plurality of orientations at which the adjustable connector 52 is
in a substantially fixed or immobile state. Therefore, according to
implementations, the adjustable connector 52 can provide
adjustability and lockout for the optical element 50.
[0102] FIGS. 10A-C also illustrate that the link joint 152 can be
configured such that at least one link 208' includes an engagement
surface 210 that provides frictional engagement with a mating
surface 212 of the adjacent link 208''. It is contemplated that the
engagement surface 210 can include at least one ridge 214 (as
illustrated in FIG. 10A), a rubber engagement ring 216 (as
illustrated in FIG. 10B), and/or a frictional coating 218 (as
illustrated in FIG. 10C), or other types or combinations of
geometries or materials that can allow the link 208' to be rigidly
positioned with respect to the link 208''.
[0103] In such an embodiment, rigid positioning can be accomplished
through a friction-based engagement or through mating geometries of
the engagement surface 210 and the mating surface 212. Further, the
mating surface 212 can likewise be configured to include the
geometries and/or materials mentioned with respect to the
engagement surface 210. In particular, the mating surface 212 can
preferably be configured to correspond to the engagement surface
210 in providing a rigid engagement between the links 208', 208''.
For example, the contour and shape of the mating surface 212 can
correspond to that of the engagement surface 210, such as each
including a plurality of ridges.
[0104] In accordance with yet another embodiment, the optical
element 50 can be configured with the transmission surface 52 being
tiltably connectable to the distal end 882 of the adjustable
connector 52. Exemplary embodiments of such a configuration are
illustrated in FIGS. 11A-C.
[0105] Referring first to FIG. 11A, the distal end 82 of the
adjustable connector 52 can define a connector axis 220. The
connector axis 220 can be defined as extending longitudinally from
the distal end 82 of the adjustable connector 52. As illustrated in
FIG. 11A, the transmission surface 56 can be configured to rotate
about the connector axis 220. This rotational movement can be
facilitated through the use of a rotation connector 222. The
rotation connector can rotatably couple the transmission surface
256 to the distal end 82 of the adjustable connector 52. As
illustrated in FIG. 11A, the rotation connector 222 can be
positioned at the transmitter joint 154. In such an embodiment, the
rotation connector can interconnect the transmitter 160 directly to
the distal end 82 of the adjustable connector 52.
[0106] According to another implementation, the optical element 50
can also be configured to allow the transmission surface 56 to
rotate transversely to the connector axis 220, as illustrated in
the embodiment shown in FIG. 11B. The transmission surface 56 can
define a transmitter axis 224, as illustrated in FIG. 11B. The
distal end 82 of the adjustable connector 52 can be configured to
provide rotatable interconnection with the transmitter 160 such
that the transmitter 160 and the transmission 56 can rotate about
the transmitter axis 224. In the embodiment illustrated in FIG.
11B, the transmitter axis 224 can be transversely oriented with
respect to the connector axis 220. Thus, the transmission surface
56 can be configured to rotate or swivel about the transmitter axis
224.
[0107] In yet another embodiment, the transmission surface 56 can
be rotatable about the transmitter axis 224 and tiltable with
respect to the connector axis 220, as illustrated in the embodiment
of FIG. 11C. As shown therein, the link join 152 can be configured
to provide a ball-and-socket connection 226 that can allow the
transmission surface 56 to rotate about the connector axis 220 and
the transmitter axis 224. In addition, the ball-and-socket
connection 226 can also allow the transmission surface 56 to be at
least partially translidable in each of the X, Y, and Z axial
directions.
[0108] Various other configurations can be implemented in order to
allow the transmission surface 56 to be tiltable with respect to
the connector axis 220 and/or rotatable with respect to the
transmitter axis 224. Such configurations can be prepared utilizing
the teachings herein in combination with skill in the art. For
example, the optical element can be configured such that it is
capable of tracking along the surface of a sphere. Further, the
optical element can also be configured to track along an exterior
surface of the lens.
[0109] As mentioned above with respect to FIG. 5, the optical
element(s) can be connected to the anterior portion 62 of the frame
12 or to the outer portion 64 of the earstem(s). Further, the
optical element(s) can also be connected to the posterior portion
60 of the frame 12 or to the inner portion 66 of the earstem(s).
Further, it is contemplated that the optical element(s) can be
configured to be nestable within a portion of the frame 12 or
earstems 24, 26 as desired. Thus, the optical element(s) can be
moveable between a nested position and an extended position. Such a
design may provide a sleek and unobtrusive nested configuration.
For example, the connectors can be configured to fold against the
earstems, and various types of link joints can be used to allow the
adjustable connector to fold upon itself in the nested position
without protruding significantly from the earstem.
[0110] According to yet another aspect, the first and second
optical elements 50, 70 can be used in combination to provide a
dual element projection assembly, as illustrated in FIGS. 2 and
12A-C. In this regard, it is contemplated that any of the features
and embodiments described herein can be incorporated into either a
single or dual element projection assembly. As mentioned above, in
the dual element project assembly embodiment, each of the first and
second optical elements 50, 70 can be formed to include orientation
indicators 190 in order to achieve symmetrical positioning of the
first and second elements 50, 70. Thus, the first and second
optical elements 50, 70 can be positioned such that the optical
beams projected from the first and second transmission surfaces 56,
76 can be projected on to the retinas 126', 126'' of the wearer
within the respective ranges of allowability 118', 118''.
[0111] According to another implementation, the first and second
optical elements 50, 70 can be configured to be at least partially
incorporated or nested into the frame 12 of the eyeglass 10. In
some embodiments, the first and second optical elements 50, 70 can
be nestable along the respective ones of the first and second
orbitals 14, 16 of the frame 12. In this regard, the first and
second optical elements 50, 70 can be formed to correspond to the
general shape and curvature of the first and second orbitals 14,
16. It is contemplated that the first and second orbitals 14, 16
can be formed to provide a groove or slot into which the respective
ones of the first and second optical elements 50, 70 can be
positioned in a nested position. The first and second optical
elements 50, 70 can be connected to the posterior portion 60 or the
anterior portion 62 of the frame 12. By being connected to the
frame 12, it is contemplated that the first and second optical
elements 50, 70 can be deployed into the wearer's field of view,
and despite the normal movement of the wearer, maintain a stable
position.
[0112] Further, the projection assembly can be configured such that
the first and second optical elements 50, 70 are coupled together
for at least a portion of their adjustable movement. For example,
FIG. 12A is a rear view of an eyeglass 10 wherein the first and
second optical elements 50, 70 are attached to a swingbar 228. The
swingbar 228 can be configured to move from a retracted position
234 when the projection assembly is not in use (illustrated in FIG.
12A), to a deployed position 236 (illustrated in FIGS. 12B-C) that
orients the first and second optical elements 50, 70 to be within
the range of allowability in the field of view of the user. Thus,
the swingbar 228 can tend to ensure that the first and second
optical elements 50, 70 move in unison for at least a portion of
the adjustable movement (termed "rough adjustment"), thereby
improving the symmetrical positioning of the first and second
optical elements 50, 70 within the wearer's field of view.
[0113] As described further below, the use of the swingbar 228 can
ensure that the "rough adjustment" of the projection assembly
relative to the wearer's eyes maintains the symmetry of the first
and second optical elements 50, 70. A "fine adjustment" can
subsequently be performed by manipulation of the first and second
optical elements 50, 70.
[0114] FIGS. 12A-C show an embodiment of the swingbar 228 wherein
the swingbar 228 is elongate and includes a first end 230 and a
second end 232. Although various operative connections and
configurations can be utilized, the swingbar 228 can be an elongate
bar that extends along at least a portion of the first and second
orbitals 14, 16 of the frame 12. The swingbar 228 can extend along
the entire length of the first and second orbitals 14, 16, as shown
in FIGS. 12A-C, or only along a portion thereof, as desired.
[0115] The swingbar 228 can be formed to correspond to the general
shape and curvature of the first and second orbitals 14, 16.
Further, the first and second orbitals 14, 16 can be formed to
provide a groove or slot into which the swingbar 228 can be
positioned in a nested position. The swingbar 228 can be connected
to the posterior portion 60 or the anterior portion 62 of the frame
12.
[0116] In some embodiments, the swingbar 228 can be pivotally
mounted to the frame 12. In the embodiment illustrated in FIGS.
12A-C, the first end 230 and the second end 232 of the swingbar 228
can each be pivotally mounted to the posterior portion 60 of the
frame 12. However, the swingbar 228 can also be centrally coupled
to the frame 12 at a single pivot point, move by means of
translation, or other forms of movement. In one implementation, the
swingbar 228 can be configured to extend between centerpoints of
the first and second orbitals 14, 16, and be pivotally coupled to
the frame 12 at a point above the bridge 18.
[0117] As mentioned above, the swingbar 228 is preferably moveable
from the retracted position 234 to the deployed position 236 so as
to ensure that the first and second optical elements 50, 70 move
symmetrically with the swingbar 228. Preferably, once the swingbar
228 is moved to the deployed position 236, thus providing the
symmetrical "rough adjustment," the first and second optical
elements 50, 70 can then be adjusted to provide the "fine
adjustment" of the projection assembly.
[0118] As shown in the illustrative embodiment of FIG. 12B, the
deployed position 236 of the swingbar 228 may only be slightly
displaced from the retracted position 234 thereof. For example, the
swingbar 228 may be operative to pivot within a range of
approximately 1/8 to 1/2 inches, and preferably, approximately 1/4
inch. In accordance with an embodiment, the swingbar 228 can be
configured to be rigidly maintained in a position outside of the
wearer's straight ahead line of sight, whether in the retracted
position 234 or the deployed position 236. Thus, the projection
assembly preferably does not obscure or block the wearer's view by
placing bulky objects in the straight ahead line of sight, and such
safety precautions should always be considered when using
embodiments.
[0119] The swingbar 228 can be configured with the first and second
optical elements 50, 70 being supported thereon. As illustrated in
FIGS. 12A-C, the first and second optical elements 50, 70 can be
mounted onto the swingbar 228 with the distal ends 82, 86 of the
first and second adjustable connectors 52, 72 being pivotably
connected thereto. A variety of configurations can be implemented.
Preferably, the swingbar 228 can be configured such that the first
and second optical elements 50, 70 can be nested against or in the
swingbar 228 when the swingbar 228 is in the retracted position
234.
[0120] In another embodiment, when the swingbar 228 is in the
deployed position 234, the first and second optical elements 50, 70
can be adjusted to enter the wearer's straight ahead line of sight
and to project the optical beams onto the retinas, as described
above. In the illustrated embodiment of FIG. 12B, when the swingbar
228 is moved to the deployed position 236, the first and second
optical elements 50, 70 can be pivoted downwardly such that the
optical beams projected from the first and second transmission
surfaces 56, 76 can be projected onto the retinas 126', 126'' of
the wearer within the respective ranges of allowability 118',
118''.
[0121] It is also contemplated that an implementation of the
orientation indicator 190 can be incorporated into the eyeglass 10
shown in FIGS. 12A-C. Further, in order to ensure that the swingbar
228 journeys only intermediate the retracted position 234 to the
deployed position 236, it is contemplated that a motion limiting
element can also be included. For example, the motion limiting
element can be: a protrusion that limits the pivotal motion of the
swingbar 228; a rotation limiter that is disposed at the first and
second ends 230, 232; a triangular recess along the posterior
portion 60 of the frame 12 in which the swingbar 228 travels;
and/or other structures. In this regard, the first end 230 and the
second end 232 can be recessed into the frame or protrude
therefrom. Various modifications can be implemented to ensure the
accuracy and repeatability of the positioning of the swingbar
228.
[0122] Although these inventions have been disclosed in the context
of certain preferred embodiments and examples, it will be
understood by those skilled in the art that the present inventions
extend beyond the specifically disclosed embodiments to other
alternative embodiments and/or uses of the inventions and obvious
modifications and equivalents thereof. In addition, while several
variations of the inventions have been shown and described in
detail, other modifications, which are within the scope of these
inventions, will be readily apparent to those of skill in the art
based upon this disclosure. It is also contemplated that various
combination or sub-combinations of the specific features and
aspects of the embodiments may be made and still fall within the
scope of the inventions. It should be understood that various
features and aspects of the disclosed embodiments can be combined
with or substituted for one another in order to form varying modes
of the disclosed inventions. Thus, it is intended that the scope of
at least some of the present inventions herein disclosed should not
be limited by the particular disclosed embodiments described
above.
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